oj.uz

Submission #1024456

# Submission time Handle Problem Language Result Execution time Memory
1024456 2024-07-16T05:25:52 Z thinknoexit City Mapping (NOI18_citymapping) C++17
41 / 100
 92 ms 16112 KB 
#include "citymapping.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 1010;
ll dis[N][N];
int n;
int p[N];
int fr(int i) {
	return p[i] == i ? i : p[i] = fr(p[i]);
}
ll d(int i, int j) {
	if (i == j) return 0;
	if (!dis[i][j]) return dis[i][j] = dis[j][i] = get_distance(i, j);
	return dis[i][j];
}
void find_roads(int NN, int Q, int A[], int B[], int W[]) {
	n = NN;
	if (Q == 12000) {
		ll mx = 0;
		int idx = 0;
		for (int i = 2;i <= n;i++) {
			if (d(1, i) > mx) {
				mx = d(1, i);
				idx = i;
			}
		}
		vector<pair<ll, int>> v;
		for (int i = 1;i <= n;i++) {
			v.push_back({ d(idx, i), i });
		}
		sort(v.begin(), v.end());
		for (int i = 1;i < n;i++) {
			A[i - 1] = v[i - 1].second;
			B[i - 1] = v[i].second;
			W[i - 1] = v[i].first - v[i - 1].first;
		}
		return;
	}
	vector<pair<int, pair<int, int>>> v;
	for (int i = 1;i <= n;i++) {
		p[i] = i;
		for (int j = i + 1;j <= n;j++) {
			v.push_back({ d(i, j), {i, j} });
		}
	}
	int idx = 0;
	sort(v.begin(), v.end());
	for (auto& x : v) {
		int u = x.second.first, v = x.second.second;
		if (fr(u) == fr(v)) continue;
		p[fr(u)] = fr(v);
		A[idx] = u, B[idx] = v, W[idx] = x.first;
		idx++;
	}
	return;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 15232 KB Correct: 498501 out of 500000 queries used.
2 Correct 87 ms 15040 KB Correct: 499500 out of 500000 queries used.
3 Correct 87 ms 16112 KB Correct: 492528 out of 500000 queries used.
4 Correct 86 ms 15820 KB Correct: 494515 out of 500000 queries used.
5 Correct 87 ms 15308 KB Correct: 498501 out of 500000 queries used.

Subtask #2
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 15232 KB Correct: 498501 out of 500000 queries used.
2 Correct 87 ms 15040 KB Correct: 499500 out of 500000 queries used.
3 Correct 87 ms 16112 KB Correct: 492528 out of 500000 queries used.
4 Correct 86 ms 15820 KB Correct: 494515 out of 500000 queries used.
5 Correct 87 ms 15308 KB Correct: 498501 out of 500000 queries used.
6 Incorrect 67 ms 15744 KB Reported list of edges differ from actual.
7 Halted 0 ms 0 KB -

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Correct: 1979 out of 12000 queries used.
2 Correct 2 ms 7756 KB Correct: 1983 out of 12000 queries used.
3 Correct 2 ms 7772 KB Correct: 1997 out of 12000 queries used.
4 Correct 2 ms 7772 KB Correct: 1983 out of 12000 queries used.
5 Correct 2 ms 8028 KB Correct: 1979 out of 12000 queries used.

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Correct: 1979 out of 12000 queries used.
2 Correct 2 ms 7756 KB Correct: 1983 out of 12000 queries used.
3 Correct 2 ms 7772 KB Correct: 1997 out of 12000 queries used.
4 Correct 2 ms 7772 KB Correct: 1983 out of 12000 queries used.
5 Correct 2 ms 8028 KB Correct: 1979 out of 12000 queries used.
6 Correct 2 ms 8280 KB Correct: 1993 out of 12000 queries used.
7 Correct 2 ms 7772 KB Correct: 1989 out of 12000 queries used.
8 Correct 2 ms 7772 KB Correct: 1997 out of 12000 queries used.
9 Correct 2 ms 8284 KB Correct: 1991 out of 12000 queries used.
10 Correct 2 ms 7516 KB Correct: 1985 out of 12000 queries used.

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 15232 KB Correct: 498501 out of 500000 queries used.
2 Correct 87 ms 15040 KB Correct: 499500 out of 500000 queries used.
3 Correct 87 ms 16112 KB Correct: 492528 out of 500000 queries used.
4 Correct 86 ms 15820 KB Correct: 494515 out of 500000 queries used.
5 Correct 87 ms 15308 KB Correct: 498501 out of 500000 queries used.
6 Incorrect 67 ms 15744 KB Reported list of edges differ from actual.
7 Halted 0 ms 0 KB -